JPS6361165A - Reagent confirming apparatus in automatic chemical analyser - Google Patents

Abstract

PURPOSE:To prevent an input or setting mistake, by providing bar codes as the discrimination informations corresponding to respective reagents to a plurality of reagent bottles and providing a bar code reader reading said bar codes to input the same to a CPU. CONSTITUTION:A bar code reader 4 is mounted to the intermediate part of a reagent distribution mechanism. A large number of reagent bottles 2 each having a bar code label 5 preliminarily adhered thereto and receiving the reagent corresponding to the bar code of said label 5 are set to a large number of reagent cassettes 3 and, when an arm 1 is allowed to make one revolution above the bottles 2 set in an annular form, the bar code reader 4 reads the bar code on each bottle 2 and the information thereof is inputted to a CPU. The CPU confirms the reagent received in each bottle 2 and can re-confirm said bottle 2 even at the time of the suction of the reagent. Therefore, the input or setting mistake of each reagent can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention (Industrial Application Field) The present invention relates to an automatic chemical analyzer used in clinical tests, etc., and particularly to a reagent recognition device in a random access type automatic chemical analyzer.

(Prior art) Generally, in this type of automatic chemical analyzer, a plurality of reagent bottles containing different reagents depending on the test item are arranged. First, the sample to be tested is dispensed into reaction vessels according to the test item. Then, the CPU selects a reagent bottle containing the reagent necessary for the test item from among the plurality of reagent bottles, inhales the reagent from the bottle, and dispenses it into the reaction container, and the chemical By measuring the absorbance of the colored substance produced by the reaction, the specific substance contained in each sample can be quantified.

In such an automatic chemical analyzer, is it necessary to input into the CPU in advance the information necessary for the CPU to select a reagent bottle containing the necessary reagents that differ depending on the test item? Conventionally, the user inputs what reagents are placed in which position in a reagent cassette, which can hold dozens of reagent bottles, into the CPU using the keyboard, or the position of the reagents to be placed in the reagent cassette is determined. It was closed.

(Problem to be solved by the invention) However, with this method, input errors occur when inputting the reagent position using the keyboard, and setting errors occur when setting the reagent in the reagent cassette, resulting in waste. I had to conduct some tests.

SUMMARY OF THE INVENTION An object of the present invention is to solve one or more of the above problems, eliminate input errors and setting errors, and avoid unnecessary tests.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides each of a plurality of reagent bottles with a barcode as identification information corresponding to the reagent, and the barcode. Read CP
The configuration includes a barcode reader for input to U.

(effect) Since the present invention has the above configuration, it operates as follows.

That is, each reagent bottle is provided with a barcode as identification information corresponding to the reagent, and a plurality of reagent bottles containing reagents corresponding to the barcode are arranged, and the bar code of each reagent bottle is arranged. When the barcode reader is run across the code, the barcode reader reads the barcode on each reagent bottle and that information is entered into the CPH.

Therefore, according to the present invention, there are no input errors when inputting the reagent position using the keyboard or setting errors when setting the reagent in the reagent cassette as in the past, and unnecessary tests can be performed. In particular, with conventional loading trowels in which the position of the reagents to be set in the reagent cassette is determined in advance, it is possible to set the reagent bottle in the wrong position when adding reagents during the test. In other words, in the case of the present invention, the reagent bottle can be set at any position on the reagent cassette, which simplifies the work of setting the reagent bottle. It is planned to become

(Example) The illustrated embodiment will be described below.

FIG. 1 is a partially cutaway front view showing essential parts of a reagent recognition device according to the present invention, and FIG. 2 is a plan view.

1 is an arm constituting a reagent dispensing mechanism, and a dispensing nozzle 6 is attached to its tip, and a barcode reader 4 is attached to its middle part. The arm 1 is supported by a support 7, and is rotated about the support 7 by a drive device (not shown).

Reference numeral 2 denotes a fan-shaped reagent bottle when viewed from above, and a large number of them are set in a circular reagent cassette 3. Each reagent bottle 2 contains a different reagent depending on the test item.

Reference numeral 5 denotes a barcode label attached to the top surface of each reagent bottle 2, and information or barcodes for identifying the reagent contained in each reagent bottle 2 are printed on the surface. The barcode label 5 is attached at a position facing the barcode reader 4, so that the barcode reader 4 can read its identification information. A CPU (not shown) is connected to the barcode reader 4, and the identification information read by the barcode reader 4 is input to the CPU.

This allows the CPU to recognize the reagent contained in the reagent bottle 2 and to reconfirm this when aspirating the reagent.

In the device described above, a barcode label 5 is pasted in advance, reagent bottles 2 containing reagents corresponding to the barcode are set in a plurality of reagent cassettes 3, and the arm is placed over the reagent bottles 2 set in an annular shape. When the reagent bottle 1 is rotated once, the barcode reader 4 reads the barcode on each reagent bottle 2, and the information is input to the CPU.

Therefore, with this device, there are no input errors when inputting reagent positions using the keyboard or setting errors when setting reagents in reagent cassettes, which is the case with conventional methods, and unnecessary tests can be performed. There's no need to worry about it. In particular, with the conventional system in which the positions of reagents to be set in reagent cassettes are determined in advance, problems often arise in which the reagent bottles are set in the wrong position when adding reagents during a test. According to the apparatus, such a situation does not occur.In other words, in the case of the present apparatus, the reagent bottle can be set at any position on the reagent cassette, thereby simplifying the work of setting the reagent bottle.

Moreover, in the case of the wooden case d, when the reagent is aspirated, the bar code is read by the bar code reader 4 and then reconfirmed by the CPU, making it possible to conduct a more reliable test.

Although one embodiment of the present invention has been described above, it goes without saying that the present invention is not limited to the above-mentioned embodiment, and can be modified and used as appropriate within the scope of the gist of the present invention.

For example, the reagent bottles are arranged in a straight line rather than in a circular pattern.

It may be arcuate.

Furthermore, the barcode may be printed directly on the reagent bottle instead of on the barcode label.

[Effects of the Invention] As detailed above, according to the present invention, input errors when inputting reagent positions using a keyboard as in the past and setting errors when loading reagents into reagent cassettes can be avoided. There is no possibility that this will occur and unnecessary tests will be conducted.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing essential parts of a reagent recognition device according to the present invention, and FIG. 2 is a plan view of the same. l...Arm, 2...Reagent bottle,

Claims (1)

[Claims] In an automatic chemical analyzer in which a plurality of reagent bottles containing different reagents depending on the test item are arranged, and a CPU selects and uses a reagent bottle containing the reagent required for the test item from among the plurality of reagent bottles, the above-mentioned method is used. An automatic chemical analyzer characterized in that each of a plurality of reagent bottles is provided with a barcode as identification information corresponding to the reagent, and a barcode reader is provided for reading this barcode and inputting it to a CPU. Reagent recognition device.